William "Bogs" Adornado (born May 26, 1951) is a Filipino former basketball player and coach. He is one of the Philippine Basketball Association's 25 Greatest Players of All-Time and was inducted to its Hall of Fame in 2005. He was a three-time PBA Most Valuable Player (1975, 1976, and 1981) and is considered one of the best Filipino basketball players of all-time.